As the Economist recently showed, gentrification is about more than just the economics of shuffling people around housing units. Unfortunately, it was the magazine’s complete disinterest in addressing the complexities of the issue that proved the point.

An abundance of asphalt and concrete increases air temperatures locally, which can exacerbate the effects of heat waves and generally cause unpleasant conditions. This is known as the urban heat island effect and it can be true for both sprawled suburbs and dense cities. Savannah’s beautiful green spaces offer a prime example of how the benefits of dense development can be achieved while mitigating or eliminating the urban heat island effect.

A weekly roundup of interesting stories from around the country. The National Hockey League is not just one of the biggest buyers of green energy among sports leagues, but among all US companies. Philadelphia created better designed streets simply by looking at where cars drive in the snow. And a stress-relieving simulation of traffic moving through various types of intersections.

Buckhead has sometimes been referred to as the Jewel of Atlanta, though this title is severely threatened by its increasingly underwhelming user experience. Its lack of vibrancy, identity, and walkability make the neighborhood a shining example of poor urban design and undercut its ability to attract residents and businesses. In its attempt to remain relevant, Buckhead should look to Miami’s Brickell neighborhood, Virginia’s Tyson’s Corner, and Atlanta’s Midtown neighborhood.

Pro-helmet and anti-helmet advocates both make compelling arguments in the quest to make cycling safer. While better urban design principles would fundamentally solve the safety problem, courts may find that cyclists have a duty to wear a helmet.

We’ll likely see an increase in the number of poorer suburban communities. While Cobb and North Fulton will still have enclaves of wealthier residents, they will increasingly become the destination of lower-income individuals when they are priced out of the walkable Atlanta area. While quality-of-life is an issue even for wealthier residents in auto-centric communities, it is much more of a problem for their poorer residents. Try getting to the grocery store or your job when you don’t have a car and your community doesn’t support sidewalks or alternative transportation. While sitting in traffic on the way to work is stressful, having no transportation options to safely get to that place of work is arguably more stressful.